Series A · AI & Machine Learning · London, United Kingdom · Founded 2014 · 150–200 employees
Prolific operates a research platform connecting AI developers with over 120,000 vetted human participants for training and testing AI models. Founded in 2014, the company has grown to serve major clients including Google, Stanford University, Oxford University, and the European Commission. The platform addresses critical AI challenges including hallucinations, bias, and copyright issues through Reinforcement Learning from Human Feedback (RLHF). In 2023, Prolific raised £25 million in Series A funding and has processed over $100 million in payments to participants.